摘要
为降低22116回风顺槽掘进工作面粉尘浓度,通过Fluent数值模拟软件进行巷道内风速分布规律和粉尘分布规律的模拟分析,基于数值模拟结果确定粉尘防治的重点区域为滞后掘进工作面20 m的范围,结合巷道地质条件,设计掘进工作面采用优化通风+综掘机喷雾+水幕的降尘方案,喷雾用水采用磁化水,并在防尘方案实施后进行降尘效果分析。结果表明:降尘方案实施后,综掘机司机处全尘和呼尘降尘率分别为83.7%和80%,降尘效果显著,优化了掘进作业环境。
In order to reduce the dust concentration of the 22116 return air along the trench,the Fluent numerical simulation software is used to simulate the wind speed distribution and the dust distribution in the roadway.Based on the numerical simulation results,the key area of dust prevention is determined to be the range of the lagging tunneling face 20 m.,Combined with the geological conditions of the roadway,the design of the tunneling face adopts the optimized ventilation+fully mechanized machine spray+water curtain dust reduction plan,the spray water uses magnetized water,and the dust reduction effect analysis is carried out after the dust control plan is implemented.The results show that after the implementation of the dust reduction plan,the total dust reduction rate and the expiration dust reduction rate of the comprehensive excavator driver are 83.7%and 80%,respectively,the dust reduction effect is significant,and the tunneling operation environment is optimized.
作者
靳李斌
JIN Libin(Lu'an Chemical Group Luing Coal Industry Co.,LTD.,Ningwu036706,China)
出处
《煤矿现代化》
2021年第5期140-142,145,共4页
Coal Mine Modernization
关键词
掘进工作面
粉尘浓度
优化通风
磁化水
Driving face
dust concentration
optimized ventilation
magnetized water
